Here, on the north wall, is a pearly, translucent door, through which glints of green and greenish light come flickering through. You can't open it, even though you try. But there appears to be a little opening here, near the floor, maybe just big enough for a small rat.
Oh, no! That huge, ugly green thing seems to have taken a shortcut here and is awaitng you. In the last moments, as its tongue wraps around you, you realize that it's a humungous frog ... and well, you're a fly.
The last thing you hear is a little voice in your ear: "Thank you for play testing the beta version of our cybertransformation system!"
The next moment, there is nothing but empty peace, empty calm. With no end.